Valve-tool.



W. G. STROUD.

VALVE TOOL.

APPLlcArlou FILED luui 6.1915.

1,198,678, Pandsept. 19,1916.

WILLIAM G'. STROUD, OF

ST. PAUL, MINNESOTA, ASSIGNOR 0F ONE-HALF TO JAY N.

PIKE, OF ST. PAUL, MINNESOTA.

VALVE-TOOL.

Specification of Letters Patent.

Patented Sept. 19, 1916.

Application led June 6, 1916. Serial No. 102,051.

T o all whom it may concern Be it known that I, WILLIAM G. STROUD, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Valve-Tools, of which the following is a specification.

This invention contemplates an improved valve tool and has as its primary object to provide a device of this character especially adapted for use in grinding the puppet valves of internal combustion engines,

The invention has as a further object to provide a tool adapted for use in connection with the valves of different makes or types of engines. And the invention has as a still further objeci-I to provide a valve tool so constructed that the said tool may be adjusted to fit through an engine porthole over a valve to engage therewith so that the tool may thus be readily employed even though the head of the valve is not exposed.

Other and incidental objects will appear as the description proceeds and in the drawings wherein I have illustrated the preferred embodiment of the invention and wherein similar reference characters designate corresponding parts throughout the several views: Figure 1 is a perspective view of my improved valve tool particularly showing the arrangement of the several bits carried thereby, Fig. 2 is a side elevation partly in section and particularly showing the manner in which the Spanner bits employed may be adjusted to lie substanti illy within the lines of the stock of the tool so that the said tool may be inserted through the porthole of an engine, to engage a valve, and Fig. 3 is a transverse sectional view more particularly showing the mounting of the Spanner bits.

In carrying out the invention, I employ a body member or stock 10 which is preferably formed with flat sides and at its upper extremity, is provided with a longitudinally tapered head 11 squared to detachably receive a handle 12. The handle, as will be best observed upon reference to Fig. 2 of the drawings, is provided, at its inner extremity, with a socket member 13 which fits over the head 11 to engage therewith, this socket member being preferably formed with milled or otherwise roughened walls to frictionally engage with the head so that the handle will thus be securely held in position. In this connection, it will be observed that the handle 12 may be removed and a brace connected to the stock 10 in the well known manner-'for rotating the stock. At its lower extremity, the stock is formed with a beveled terminal or bit 14 to form a screw-driver with the said bit preferably provided with a suitable centering nib, as indicated in the drawings, for holding it against slipping.

Mounted upon opposite sides of the stock 10 are coacting arms or Spanner bits 15. These bits are formed with flat inner faces to seat flat against the flat sides of the stock and are arranged witlf the outer ends thereof normally projecting lay/ond the terminal 14. Swingingly connecting the bits 15, at their upper extremities, with the stock 10, is a bolt or other suitable fastening 16. The bolt 16 adjacent its inner extremity, is, as best seen in Fig. 3 of the drawings, formed with a squared portion to engage one of the said bits with the said bolt loosely fitted through the stock 10 and freely receiving the other bit. Screw threaded upon the bolt is a nut 17. As will now be seen, the bit engaged with the said bolt may be grasped for holding the bolt against turning movement while the nut 17 is adjusted.

As best seen in Fig. 1 of the drawings, the bits 15 are, at their free extremities, beveled toward the outer ends thereof to provide reduced cylindrical work engaging terminals 18 and, as will now be observed, the bits may be adjusted relative to each other upon the body member to be held at adjustment by the bolt 16 and nut 17.

As previously indicated, the present invention is especially designed for grinding the puppet valves of internal combustion engines. In some instances, such valves are formed with slots to receive a screw driver while in other instances, spaced key sockets are provided in the valves. However, the spacing of such key Sockets is not uniform in different types of engines. Accordingly, the bits 15 are adjustably mounted so that the said bits may be positioned to engage the terminals 18 thereof within the key sockets of substantially any conventional type of valve when, by turning the handle 12, the tool may be rotated to grind the valve against its seat. In any instance where a valve is provided with a Screw driver slot or groove but is without key sockets, the bits 15 may be swung to inactive position and the bit 14 of the stock 10 engaged in the said slot or groove for manipulating the valve in the well known manner.

As illustrated in Fig. 2 of the drawings, the bits 15 may be swung upwardly upon the stock 10 to lie entirely within the lines thereof. When so adjusted, the stock 10 may be inserted through a porthole of an engine to engage a valve thereof and the stock operated through the said porthole for grinding the valve.

It will therefore be seen that I provide a very simple and eicient construction for the purpose set forth as well as a tool which is adapted for use in connection with substantially any conventional type of engine puppet valve.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A valve tool including a stock, and coacting Spanner bits carried by the stock and movable to inactive position lying within the lines thereof with the said stock adapted to provide a work engaging bit.

2. A valve tool including a stock, and coacting Spanner bits swingingly connected thereto and adjustable laterally with respect to the free end of the said stock.

3. A valve tool including a stock, coactin Spanner bits, and means ad'ustably and pivotally connecting the said its with the stock.

4. A valve tool including a stock, coacting bits swingingly connected with the stock adjacent the outer end thereof and movable from active position projecting toward the outer extremity of the stock at opposite sides thereof to inactive position lying against opposite sides of the stock and projecting toward the inner extremity thereof with the said bits disposed substantially within the lines of the stock and'with the outer end of the stock adapted to provide a work-engaging bit.

In testimony whereof I ailix my signature.

WILLIAM Gr. STROUD. [L. s]

copied of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

